NOW Pets L-Lysine Immune System Support Cat Supplement
In a Nutshell
- Effective immune support
- Easily mixed into food
- Not all cats will find it palatable
- Mixed reviews on effectiveness
- False economy if reactions are poor across different groups
Quick Verdict
The supplement has received mixed reviews, ranging from extremely positive feedback, rifering to its effects being overwhelmingly positive, to serving as a poor alternative to other cat supplements; users have described it as easy to mix in food, although some cats do seem not to take well to the taste, even when concealed in food and despite the availability of several variants, such as chews and drops, remain under consideration.
Quick Stats
Pet Compatibility
Pros & Cons
Pros
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Effective Immune Support (5)
Boosts the immune system of cats
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Easy to Use (4)
No issues with leftover crumbs
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Variety of Sizes (2)
Several colors and sizes to choose from
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Good for Allergies (3)
Soutured dermal health for allergies and itching
Cons
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Taste Issues (2) major
Some cats can detect the taste
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Mixed Experience (2) major
Effectiveness varies among cat breeds
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Low Concentration (2) major
Seems to have a lower concentration compared to other brands
Tip: Suggest using a higher dose
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No Measuring Scoop (1) minor
Comes without a measuring scoop, some other need some.
Tip: Use a standard measuring spoon.
Who Is This For?
✓ Best For
- • Cats with immune issues — Helps support and boost immune system
- • Cats with skin issues — Aids in maintaining healthy skin and coat
✗ Skip If
- • Picky eaters — May reject food due to detectable taste
- • Owners seeking strong antiviral effects — Less effective compared to other brands
Durability & Care
Factors: Usage frequency, Storage conditions
Care Tips from Users
- 💡 Store in a cool, dry place
- 💡 Use a desiccant pack if the container opens
- 💡 Store in a sealed container to minimize exposure
Floor Compatibility
Rating Distribution
Common Questions
Is this product suitable for all cat breeds?
Yes, it is effective for all cats with immune and skin issues, according to reviews.
How should I store this product?
Store in a cool, dry place and use a desiccant pack to maintain freshness.
Highlighted Reviews
"I have tried the chews and turkey flavored drops, chews being a massive failure for both our kitten and grown kitty, drops only being accepted by the kitten slightly when mixed. But I sprinkled this in their food and neither could tell it was there. My older cat licked it right off the mixing spoon...."
"Switched back to Viralys which he was on for months, and had brought his feline herpes virus symptoms under control. I switched to this due to the price difference, but using the dosing instructions on the bottle, his symptoms returned in full force after two weeks. It also appears to be a lower con..."
Bottom Line
Overall, it is a good, affordable option for cats needing immune support, but it may not work as effectively for all pets, especially feral cats.